Bucket.



No. 747,818. 3 y PATBNTBD nmaz'ylsq'a."

e. H; WILLIAMS.

BUGKET.

APPLICATION rmm APB.11, 1903.

N0 MODEL. 2 SHEETS-SHEET 1.

1H1: Mm mas cm. moromua. wunmomn. u. c.

- No. 747,818. PATENTED DEG. 22,1903.

' G. H. WILLIAMS.

- BUCKET;

APPLICATION FILED'APIL'II, 1903. y no MODEL. 2 anus-sum: 2.

A U ITED STATES Patented December 22, 1903.

PATENT QFFICE.

GURDON H. WILLIAMS, OF SOUTH BROOKLYN, OHIO, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE BROWN HOIS'IING MACHINERY COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF DELAWARE.

BUCKET.

SPECIFICATION forming part of Letters Patent No. 747,818, dated December 22, 1903.

Application filed April 11, 1903; serial No. 152,194.. on model.)

To all whom it may concern: 7

Be it known that I, GURDON H. WILLIAMS, a citizen ofthe United States, and a resident of South Brooklyn,- county of Ouyahoga, and

State of Ohio, have invented a new and useful Improvement in Buckets, of which the following is a specification, the principle of the invention being herein explained and the best modein which I have contemplated ap- IO plying that principle, so as to distinguish it from other inventions.

Myinvention relates to thatclass of devices commonly referred toas clam-shell buckets, its object being to provide a structure of such I5 character as will be particularly adapted to the handling of the lighter mineral products, such as coal, in contradistinction from the heavier, such as iron ore.

Said invention consists of means hereinaf 2o t-er fullydescribed, and particularly set'forth in the claims.

The annexed drawings and the following description set forth in detail certain mechanism embodying the invention, such dis:

closed means constituting but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings, Figure I represents a side elevational view of a clam-shell 3o bucket embodying my invention in its open position, and Fig. II represents a similar view of such bucket in its closed position. Fig. III represents a horizontal sectional view taken upon the plane indicated by line 3 3,

5 Fig. I; and Fig. IV represents a vertical sectional view taken upon the plane indicated by line 44, Fig. II. Y

The frame of the device consists of two side plates a a and a top plate a, said side plates being braced and separated by two rigid transverse bars a 0. From these bars depend four oscillatory armsB B, two from each bar, whose lower or free ends pivota-llysupport the front or inner ends of two scoop members 0 0, con- 5 neciion being made by means of transverse bars 0 c,secu red to each such member,as shown in Fig. IV. Each such scoop member has its 7 front end provided with two laterally-disposed or uprightextensions c 0, Figs. I and II, to the is secured one end of a chain h h.

upon the top of the frame.

.lower portions of which are secured the afore- 5o mentioned bars 0 c. Thesebars aredisposed so as to causethe vertical planes containing their 'axes to fall within the vertical planes containing the axes of oscillation of arms B when the scoop members are in their closed position, as shown in Fig. II. The upper extremities of the extensions 0' c are pivot-ally mounted by means of pivot-bolts 0 c n p011 two rigid links D, which are carried by and secured to a transverse bar [Upon this bar E is ro- 6o tatively'mounted a grooved power-wheel F,

to the periphery of whichis securedone end of a closing-cable G. This cable is guided byv a sheave g, suitably secured to then pper por tion of the frame, a suitable aperture a bemg formed in the top plate to permit the cable to properly pass through. Upon each side of the power wheel coaxial with the rod and fixed relatively to said wheel is a conical drum H H, to the periphery of each of which These chainsare wound upon the drums in a direc- -ti-on opposite to that of the winding of cable G upon wheel F.: The, other ends of such chains are secu red 'to an equalizing-bar J, 0+ cillatorily mounted upon a rod j, secured to and between two standards a a mounted These standards rotatively support a sheave K, around which passes a lifting and lowering cable.

Theouter side of each link D is formed or provided with a centrally-located guiding member (1, which slides in vertical undercut grooves (1 61. formed upon the inner surface of opposite sides, respectively, of the frame-a, 8

they also have a second set of axes in the links D, fixed relatively to each other, but movable relatively to the frame.

When it is desired to open the bucket, cable G is slackened away, thus permitting chains h h to unwind and the bucket to open, the upper ends of the extensions dropping downwardly with the wheel F, the scoop members assuming the position shown in Fig. I. To close the bucket, the opposite movement; is effected by pulling up upon cable G and winding up the chains h h. During such operation theguidingmembersdslideupwardly and downwardly in grooves a a and impart to the axes of the pivot-bolts c 0 planes of movement fixed relatively to the frame, so that swaying of the scoop members relatively to the frame is prevented at all times.

The lower ends of the oscillatory arms being supported at the front or inner end of the scoop members and the vertical planes containing the axes of bars 0 0 and axes of oscillation of arms B being located as described permit them to swing through an are having a larger horizontal base for a given width of frame'than is the case when such support is efiected at the rear or outer end of the scoop members. A maximum spread is hence attained for a given width of frame.

Other modes of applying'the principle of my invention may be employed instead of the one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any one of the following claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as my invention- 1. In a clam-shell bucket, the combination with two scoop mem bers, of a frame,each such member having an axis of oscillation movable and an axis of oscillation fixed relatively to such frame, such movable axes being located near the front or inner ends of their respective scoop members.

2. In a clam-shell bucket, the combination with two scoop members, of a frame,each such member having an axis of oscillation fixed relatively to said frame, and two axes of oscillation movable relatively thereto, said latter two axes intersecting the front or inner portion of their respective scoop members.

3. In a clam-shell bucket, the combination with a frame, of two scoop members each provided at its front or inner end with an extension and having an axis of oscillation fixed relatively to said frame and two axes of oscillation movable relatively thereto, one of said latter intersecting said extension and the other being located near the front or inner portion of the respective scoop members.

l. In a clam-shell bucket, the combination with a frame, of two scoop members each having an axis of oscillation fixed and an axis of oscillation movable relatively to said frame, the latter axes being fixed relatively to their respective scoop members, the vertical planes containing said latter axes being included be-.

tween the vertical planes containing the frame-axes, when the said scoop members are in their closed positions.

5. In a clam-shell bucket, the combination with a frame, of two scoop members each having an axis of oscillation fixed and two axes ofoscillation movable relatively to said frame, one of such movable axes having a plane of movement fixed relatively to said frame.

6. In a clam-shell bucket, the combination of a frame, two scoop members provided at their front orinner portions with extensions, oscillatory arms connecting the said portions with said frame, and sliding members, saidframe being provided with guides for the latter, and said extensions being pivoted upon said sliding members.

7. In a clam-shell bucket, the combination of a frame, two scoop members provided with extensions at their front or inner portions, oscillatory arms having one end mounted upon fixed pivots secured to the frame and the other end pivotally secured to the front or inner portions of the scoop members, the end portions of such extensions having a fixed path of movement relatively to said frame, the fixed pivotal axes of said arms being located from each other a distance greater than the movable pivotal axes when the scoop members are in their closed positions.

Signed by me this 9th day of March, 1903.

GURDON H. WILLIAMS.

Attest:

D. T. DAVIES, G. W. SAYVVELL. 

